TY - JOUR AU - M. S. Eremin TI - Problem~$E$ for an elliptic equation with two lines of degeneracy JO - Matematičeskie zametki PY - 1983 SP - 757 EP - 762 VL - 33 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1983_33_5_a10/ LA - ru ID - MZM_1983_33_5_a10 ER -